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361ac4a6 PP |
1 | /* |
2 | * Copyright 2017 Philippe Proulx <pproulx@efficios.com> | |
3 | * | |
4 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
5 | * of this software and associated documentation files (the "Software"), to deal | |
6 | * in the Software without restriction, including without limitation the rights | |
7 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
8 | * copies of the Software, and to permit persons to whom the Software is | |
9 | * furnished to do so, subject to the following conditions: | |
10 | * | |
11 | * The above copyright notice and this permission notice shall be included in | |
12 | * all copies or substantial portions of the Software. | |
13 | * | |
14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
15 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
16 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
17 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
18 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
19 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
20 | * SOFTWARE. | |
21 | */ | |
22 | ||
23 | #define BT_LOG_TAG "COLANDER" | |
24 | #include <babeltrace/lib-logging-internal.h> | |
25 | ||
e0831b38 PP |
26 | #include <babeltrace/ref.h> |
27 | #include <babeltrace/graph/connection.h> | |
361ac4a6 PP |
28 | #include <babeltrace/graph/component-class-sink.h> |
29 | #include <babeltrace/graph/private-component-sink.h> | |
30 | #include <babeltrace/graph/private-port.h> | |
31 | #include <babeltrace/graph/private-connection.h> | |
94a96686 | 32 | #include <babeltrace/graph/private-connection-notification-iterator.h> |
e0831b38 | 33 | #include <babeltrace/graph/private-component.h> |
c3ac0193 | 34 | #include <babeltrace/graph/component-class-sink-colander-internal.h> |
8b45963b | 35 | #include <babeltrace/assert-internal.h> |
361ac4a6 | 36 | #include <glib.h> |
361ac4a6 PP |
37 | |
38 | static | |
39 | struct bt_component_class *colander_comp_cls; | |
40 | ||
41 | struct colander_data { | |
3fd7b79d PP |
42 | bt_notification_array notifs; |
43 | uint64_t *count_addr; | |
361ac4a6 PP |
44 | struct bt_notification_iterator *notif_iter; |
45 | }; | |
46 | ||
47 | static | |
48 | enum bt_component_status colander_init( | |
49 | struct bt_private_component *priv_comp, | |
50 | struct bt_value *params, void *init_method_data) | |
51 | { | |
52 | enum bt_component_status status = BT_COMPONENT_STATUS_OK; | |
53 | struct colander_data *colander_data = NULL; | |
c3ac0193 PP |
54 | struct bt_component_class_sink_colander_data *user_provided_data = |
55 | init_method_data; | |
361ac4a6 PP |
56 | |
57 | if (!init_method_data) { | |
58 | BT_LOGW_STR("Component initialization method data is NULL."); | |
59 | status = BT_COMPONENT_STATUS_INVALID; | |
60 | goto end; | |
61 | } | |
62 | ||
63 | colander_data = g_new0(struct colander_data, 1); | |
64 | if (!colander_data) { | |
65 | BT_LOGE_STR("Failed to allocate colander data."); | |
66 | status = BT_COMPONENT_STATUS_NOMEM; | |
67 | goto end; | |
68 | } | |
69 | ||
3fd7b79d PP |
70 | colander_data->notifs = user_provided_data->notifs; |
71 | colander_data->count_addr = user_provided_data->count_addr; | |
361ac4a6 PP |
72 | status = bt_private_component_sink_add_input_private_port( |
73 | priv_comp, "in", NULL, NULL); | |
74 | if (status != BT_COMPONENT_STATUS_OK) { | |
75 | BT_LOGE_STR("Cannot add input port."); | |
76 | goto end; | |
77 | } | |
78 | ||
79 | (void) bt_private_component_set_user_data(priv_comp, colander_data); | |
80 | ||
81 | end: | |
82 | return status; | |
83 | } | |
84 | ||
85 | static | |
86 | void colander_finalize(struct bt_private_component *priv_comp) | |
87 | { | |
88 | struct colander_data *colander_data = | |
89 | bt_private_component_get_user_data(priv_comp); | |
90 | ||
91 | if (!colander_data) { | |
92 | return; | |
93 | } | |
94 | ||
95 | if (colander_data->notif_iter) { | |
96 | bt_put(colander_data->notif_iter); | |
97 | } | |
98 | ||
99 | g_free(colander_data); | |
100 | } | |
101 | ||
102 | static | |
634f394c | 103 | enum bt_component_status colander_port_connected(struct bt_private_component *priv_comp, |
361ac4a6 PP |
104 | struct bt_private_port *self_priv_port, |
105 | struct bt_port *other_port) | |
106 | { | |
634f394c | 107 | enum bt_component_status status = BT_COMPONENT_STATUS_OK; |
361ac4a6 PP |
108 | enum bt_connection_status conn_status; |
109 | struct bt_private_connection *priv_conn = | |
110 | bt_private_port_get_private_connection(self_priv_port); | |
111 | struct colander_data *colander_data = | |
112 | bt_private_component_get_user_data(priv_comp); | |
113 | ||
8b45963b PP |
114 | BT_ASSERT(priv_conn); |
115 | BT_ASSERT(colander_data); | |
361ac4a6 PP |
116 | BT_PUT(colander_data->notif_iter); |
117 | conn_status = bt_private_connection_create_notification_iterator( | |
6ff151ad | 118 | priv_conn, &colander_data->notif_iter); |
361ac4a6 PP |
119 | if (conn_status) { |
120 | BT_LOGE("Cannot create notification iterator from connection: " | |
121 | "comp-addr=%p, conn-addr=%p", priv_comp, priv_conn); | |
634f394c | 122 | status = BT_COMPONENT_STATUS_ERROR; |
361ac4a6 PP |
123 | goto end; |
124 | } | |
125 | ||
126 | end: | |
127 | bt_put(priv_conn); | |
634f394c | 128 | return status; |
361ac4a6 PP |
129 | } |
130 | ||
131 | static | |
132 | enum bt_component_status colander_consume( | |
133 | struct bt_private_component *priv_comp) | |
134 | { | |
135 | enum bt_component_status status = BT_COMPONENT_STATUS_OK; | |
136 | enum bt_notification_iterator_status notif_iter_status; | |
361ac4a6 PP |
137 | struct colander_data *colander_data = |
138 | bt_private_component_get_user_data(priv_comp); | |
3fd7b79d | 139 | bt_notification_array notifs; |
361ac4a6 | 140 | |
8b45963b | 141 | BT_ASSERT(colander_data); |
361ac4a6 PP |
142 | |
143 | if (!colander_data->notif_iter) { | |
144 | BT_LOGW("Trying to consume without an upstream notification iterator: " | |
145 | "comp-addr=%p", priv_comp); | |
146 | goto end; | |
147 | } | |
148 | ||
94a96686 | 149 | notif_iter_status = bt_private_connection_notification_iterator_next( |
3fd7b79d | 150 | colander_data->notif_iter, ¬ifs, colander_data->count_addr); |
361ac4a6 PP |
151 | switch (notif_iter_status) { |
152 | case BT_NOTIFICATION_ITERATOR_STATUS_CANCELED: | |
153 | status = BT_COMPONENT_STATUS_OK; | |
154 | goto end; | |
155 | case BT_NOTIFICATION_ITERATOR_STATUS_AGAIN: | |
156 | status = BT_COMPONENT_STATUS_AGAIN; | |
157 | goto end; | |
158 | case BT_NOTIFICATION_ITERATOR_STATUS_END: | |
159 | status = BT_COMPONENT_STATUS_END; | |
160 | goto end; | |
161 | case BT_NOTIFICATION_ITERATOR_STATUS_OK: | |
3fd7b79d PP |
162 | /* Move notifications to user (count already set) */ |
163 | memcpy(colander_data->notifs, notifs, | |
164 | sizeof(*notifs) * *colander_data->count_addr); | |
361ac4a6 PP |
165 | break; |
166 | default: | |
167 | status = BT_COMPONENT_STATUS_ERROR; | |
168 | goto end; | |
169 | } | |
170 | ||
361ac4a6 PP |
171 | end: |
172 | /* Move notification to user's pointer, even if NULL. */ | |
361ac4a6 PP |
173 | return status; |
174 | } | |
175 | ||
176 | struct bt_component_class *bt_component_class_sink_colander_get(void) | |
177 | { | |
178 | if (colander_comp_cls) { | |
179 | goto end; | |
180 | } | |
181 | ||
182 | colander_comp_cls = bt_component_class_sink_create("colander", | |
183 | colander_consume); | |
184 | if (!colander_comp_cls) { | |
185 | BT_LOGE_STR("Cannot create sink colander component class."); | |
186 | goto end; | |
187 | } | |
188 | ||
189 | (void) bt_component_class_set_init_method(colander_comp_cls, | |
190 | colander_init); | |
191 | (void) bt_component_class_set_finalize_method(colander_comp_cls, | |
192 | colander_finalize); | |
193 | (void) bt_component_class_set_port_connected_method(colander_comp_cls, | |
194 | colander_port_connected); | |
195 | (void) bt_component_class_freeze(colander_comp_cls); | |
196 | ||
197 | end: | |
198 | return bt_get(colander_comp_cls); | |
199 | } | |
200 | ||
201 | __attribute__((destructor)) static | |
202 | void put_colander(void) { | |
203 | BT_PUT(colander_comp_cls); | |
204 | } |